The mood is technical and cool, like a line drawing left on a drafting table. Relief SingleLine OTF-SVG is the work of François Chastanet, Noëlie Dayma and Élisa Garzelli, published by the institut supérieur des arts et du design Toulouse (isdaT). The name explains the build: single-line sans-serif letterforms in an OTF-SVG file. Each character shows the path a pen would take, so there is no stroke contrast to manage anywhere in the alphabet.

The main file is a Regular. I would set it large and leave room around it, then pair it with a heavier face if a layout needs a second voice. Language support covers 293 or more Latin-based languages, so multilingual signage can stay in a single typeface. The release is open source and the project lives on GitHub. Because the sources are public, you can adjust the drawing for your own machine setup. OTF-SVG files are handled differently by different applications, so test it in whatever app you output from before you commit a layout. I would reach for it on pen plotter print runs, laser-engraved brass nameplates, CNC-routed workshop signage and bilingual exhibition wall labels for a design school show.

Fabrication and signage work suits it best, especially single-stroke engraving and plotter output. Open license, free for commercial use, direct download here.